This grinder manuel is specially designed for apartments. Bedroom, living room, study, dining room, office, running anytime, anywhere. After using the grinder, it can be folded, and the folding area only occupies one square meter. Redefine face value and fall in love with running! 1.) [Stability]---The base is equipped with a large silicone suction cup, which is stable like a mountain and will not shake. 2.) [Safety]---Inertia flywheel adds flywheel protection cover to solve the problem of flywheel injury. Safety pedals are added on both sides of the runway. It can be implemented directly on the safety pedal during an emergency stop. Left and right protective caps are added at the tail end of the grinder and the bare feet that cut off the heel. 3.) [Perfect Design]---Increase tension rope, can also increase muscle and expand chest and figure while running. 4.) [Multi-functional use]---In addition to running, the treadmill can also do sit-ups and twist exercises. This is your perfect choice! 5.) Maximum weight, up to 110kg